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No. 512,026. e Patente Jan; 2, 1894.

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GAS LAMP (No Modell.)

Patented Jan. 2, 1894.

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rumen. Llmosmumme UNITED STATES PATENT EErcEp.

MICHAEL HICKS, OF NE'W YORK, N. Y.

GAS-LAM P.

SPECIFICATION forming part of Letters Patent N o. 512,026, dated January2, 1894.

Application tiled April 25. 1893. Serial No. 471,769. (No model.)

To all whom it 17mg/ concern..-

Be it known that I, MICHAEL HICKS,'of New York city, New York, haveinvented certain new and useful Improvements in Gas-Lamps, of which thefollowing is a specification.

This invention relates to a gas lamp of the class which are nowgenerally used in railway cars and secured to the Vceiling and beingpendent therefrom. In the general construction ot' this class of gaslamps there is provided in addition to the supporting arms or brackets aring secured to the lower ends of said arms with a hinged member tosup-V port a glass globe which is held inan inverted position, thestationary member of the ring having a catch to hold the globe ring.

l A chimney is provided above the glass globe and this chimney deliversthrough a tube to a ventilator formed in the ceiling of the car. Aburner is secured centrally within the body of the lamp, and theseburners are sometimes of the Argand type and sometimes a cluster ofburners is employed.

The object of this invention is to simplify the construction of lamps ofthis character, to reduce the weight and bulk of the metal parts, toprovide a reflector which shall serve as a chimney and which can beremoved downwardly when the glass globe is unhinged and without thenecessity of taking the lamp down from the supporting ceiling.

In the accompanying drawings, Figure 1 is an elevation showing the lampin the position of use. Fig. 2 is a similar view, partly in section; andFig. 3 is a cross sectional view.

In the drawings, 3 represents the supporting arms or brackets, one ofwhich is adapted to serve to, convey the gas to the burner and isprovided with a stop or gas cock 4.

5 represents a burner tube which has radial pipes 6 communicating withan annular gas chamber or ring 7 to which the gas 1s supplied from thegas arm having the cock. This burner tube extends above the ring and itsupper end is closed. By the provision of the annular ring, the brancharms and the extension of the burner tube above said ring a head of gasis maintained whereby the substituted.

A set screw 15 works through the threads of y said ears and through athreaded lug on the shade ring. By means of the set screw l5 thesehinged arms can be drawn so as to clamp the body ofthe tubular part 12.`The lower side of this clamp ring is adapted to receive the reflector1G which is usually provided with an outwardly Haring flange vat its topand the Ysmall set screws 18 being turned in so that their ends engagethe reflector below theA flange and support it in place. Said reflectordepends to about the plane of the top of the glass globe 19, and itslower margin is seated in au annular hinged ring 2O and enters loelowthe inner margin of a second annular ring 21, this ring being supportedat its outer edge by screws engaging the xefl rim or collar 22 which issecured to the lower ends of the arms The ring 2O can be lowered as seenin dotted lines Fig. 2 to permit the reflector to be removed or placedwithout detaching the supporting arms. The transparent globe 19 has itsupper flared margin secured with a hinged ring 23, the latter beingprovided with a catch 24 by which it maybe secured to the collar 22.

The chief object of this invention being to simplify the construction ofgas lamps and to dispense with all parts which would tend to obstructthe light, we call particular attention to the following features ofconstruction and operation whenin use: The metal parts are reduced inbulk and weight as far as consistent with stability of the structure;the pendent arms whereby the lamp is supported are braced at a pointintermediate their ends by the annular ring which affords a gas passageto the burner tube; the metal tubes or pipes which serve to carry offthe products of combustion from the chimney are Iso reduced in diameterand simplified in construction as to provide a direct passage waydelivering immediately7 under the ventilator at the upper end and'communicating directly with the reiiector at the lower end; the hingedclamping ring adapts the reflector to be disconnected and removed bodilydownwardly when the globe ring is released, thus avoiding theneceslsityof removing the lamp structure from the ceiling; the reectorwhich is usually of' opaline glass permits the passage of the rays of 1olightsufficiently to light the ceiling of the carto relieve it fromshadow, while the main body of light is reflected thereby downwardlythrough transparent globe 4and into the apartment.

By reducingthe number and size of the metal t 5 parts the obstructionand consumption of the rays of light are lessened; land I have foundthat with a lamp of this construction a better light is produced than bygas lamps having added metallic reflectors such as are now zo in commonuse.

Some of the details of construction maybe varied and those which arenovel are pointed out in the claims.

I clair'nl. In alamp of the class described,the combination withsupporting or bracket ar1ns,of

av fixed rim secured thereto, an inwardly projecting ring carried bysaid rim and a 'second ring hinged thereto and adapted to provide a seator support for the lower edge of a reiiector, said last named ring beingmovable whereby the retlector may be removed or inserted withoutdisconnecting the bracket arms from their supports, substantially asdescribed.

2. In alamp of the class described, the combination with the supportingarms, of an open rim secured thereto, and two reflector rings supportedon said rim and between which the lower edge of the reflector is adaptedto enter, thelowxer of said rings having a suitable seat -for the.reiector and being movable whereby the reflector may be withdrawn orinserted, substantially as described.

3. Ina'lamp of the cla-ss described, the combination with the supportingarms having a ixed rim secured to their lower ends, upper and lowerreflector rings one of which is securedV with and the other movablyattached 5o to said rim, a pipe or tube for carrying away the productsof combustion of the flame, and

a clamping ring secured to the lower end of said pipe and adapted toengage the' upper end of a reflector, substantially as described.'

4. Ina lamp of the class described, the combination with supporting armshaving afixed rim at their lower ends, a refiector ring secured theretoand 'a movable reflector ring hinged thereto, a pipe or tube arrangedcentrally of the body of the lamp and delivering 6o to a ventilator atits top, and aclamping ring having pivoted arms adapted to embrace thelower end of said tube and means for clamping said arms thereon,substantially as described. g y6 5 5.v In a lampof the class described,the combination with the bracket arms havingafixed rim provided with acatch, a globe ringhinged thereto, a reflector ring also hinged theretoand a second reflector ring secured therewith, 7o a reflector having itslower margin adaptedvto a seat in the hinged reflector ring and to passinside of the fixed'ring, a tube arranged centrally over the burnerspace and communieating with a ventilator at its top, a clamping ringprovided with binding screws to hold the reflector and adapted to beremovably secured to said tube and pivoted arms having a clamping screwfor clamping said ring to the tube, substantially as described. 8c

6. In a lamp ofthe class described, the -combination withsupportingbracket arms one of which is adapted to convey gas tothe burner andprovided with a gas cock, an annular gas chamber communicating. with thegas passage of said arm, a burner tube communicating with said gaspassage, said tubeextending above said chamber whereby to provide formaintaining a head of gas above the burner, substantially as described.Y 9o 7. In alamp of the class described, thecombination with supportingbracket arms one of which is adapted to convey gas to the burnerandprovided with a gas cock, of an a'nnulus secured to said arms betweentheirends and the hollow of which is in communication with the gaspassage of the arm, and a burner tube communicating with the gas chamberof the annulus, the latter being adapted t0 brace the bracket arms,substantially as described.

MICHAEL HICKS. Witnesses:

S. W. BRETZFIELD, RoBT. BARRY.

